Add support for specialization constants #6395

Job	Run time
build_windows (3.14)	9m 51s
build_windows (3.14, 3.14.* *_cp314)	7m 55s
build_linux (3.12)	5m 22s
build_windows (3.10)	9m 30s
build_windows (3.11)	8m 59s
build_windows (3.13)	7m 52s
build_linux (3.13)	5m 41s
build_linux (3.14, 3.14.* *_cp314)	5m 6s
build_linux (3.10)	5m 11s
build_windows (3.12)	9m 32s
build_linux (3.11)	4m 50s
build_linux (3.14)	3m 57s
test_examples_linux (3.14, 3.14.* *_cp314, false, ubuntu-latest)	5m 9s
test_examples_linux (3.14, false, ubuntu-latest)	5m 31s
test_linux (3.10, false, ubuntu-latest)	2m 30s
test_linux (3.14, 3.14.* *_cp314, false, ubuntu-22.04)	2m 24s
test_linux (3.11, false, ubuntu-latest)	2m 21s
test_linux (3.13, false, ubuntu-latest)	2m 23s
test_linux (3.14, false, ubuntu-latest)	2m 33s
test_linux (3.12, false, ubuntu-latest)	2m 12s
upload_linux	-1s
test_windows (3.14, false, windows-latest)	4m 6s
test_windows (3.11, false, windows-latest)	3m 38s
test_windows (3.12, false, windows-latest)	3m 59s
test_windows (3.14, 3.14.* *_cp314, false, windows-latest)	4m 45s
test_windows (3.10, false, windows-latest)	3m 27s
test_windows (3.13, false, windows-latest)	4m 3s
upload_windows	0s
Clean up anaconda packages	0s
	2h 12m 46s

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